SfCarousel and datatemplateselector not working

[Jørgen]

I have a data template selector with two data templates and set the key of the datatemplateselector as ItemTemplate on SfCarousel.

Result:

Invalid Operation Exception: LoadTemplate should not be null

Source:

        <sfc:SfCarousel x:Name="carousel"
                ItemTemplate="{StaticResource mediaDataTemplateSelector}"
                ItemsSource="{Binding MediaFiles}" 
                HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" />   

  <ResourceDictionary>

            <DataTemplate x:Key="mediaImageTemplate">
            </DataTemplate>
            <DataTemplate x:Key="mediaVideoTemplate">
            </DataTemplate>
            <local:MediaDataTemplateSelector x:Key="mediaDataTemplateSelector"
                ImageTemplate="{StaticResource mediaImageTemplate}"
                VideoTemplate="{StaticResource mediaVideoTemplate}" />
            
        </ResourceDictionary>
    </ContentPage.Resources>  

[Muneesh Kumar G]

Hi Jørgen, 

 

We have checked your requirement from our side and in our current implementation, we currently do not have "DataTemplateSelector Support for SfCarousel". We have logged a feature report for the same. You can find the feedback link details from below.  

 

https://www.syncfusion.com/feedback/6391/datatemplateselector-support-for-sfcarousel 

   

If you have any more specification/suggestions to the feature request, you can add it as a comment in the portal.  

 

And the feature will be available in Volume 3 Release, which will be available on month of September 2019. Please let us know if you have any concern. 

 

Regards, 

Muneesh Kumar G.  

[Jørgen]

Thanks! That would work. Just thinking about an 'infinite' scrolling carousel when there are >2 items.

[Muneesh Kumar G]

Hi Jørgen, 

 

Thanks for your update, we have analyzed your requirement and it can be achieved using UIVirtualization support as per the below code snippet.  

 

Code snippet 

<carousel:SfCarousel x:Name="carousel" ItemTemplate="{StaticResource itemTemplate}" ItemsSource="{Binding ImageCollection}" 

 ItemHeight="200" ItemWidth="200" ItemSpacing="2" 

 EnableVirtualization="True" 

 ViewMode="Linear"> </carousel:SfCarousel> 

 

We have prepared a sample based on your requirement. Please have the sample and the UG link for the reference.

Sample : http://www.syncfusion.com/downloads/support/directtrac/general/ze/UIVirtualization928560266 

UG: https://help.syncfusion.com/xamarin/sfcarousel/uivirtualization 

 

Regards, 

Muneesh Kumar G.